Oatmeal Cookie Oat Milk Creamer for Coffee

Oatmeal cookie oat milk creamer is a gently spiced, lightly sweetened coffee creamer made by steeping oats with cinnamon, vanilla, and brown sugar. Blend it briefly, strain it well, and chill it for a pourable homemade alternative to flavored store-bought creamer.

Ingredients

1 cup (90 g) old-fashioned rolled oats
3 cups (710 ml) cold water, plus extra for rinsing the oats
2 tablespoons (25 g) packed light brown sugar, or to taste
1 teaspoon vanilla extract (5 ml)
½ teaspoon ground cinnamon (1 g)
⅛ teaspoon fine salt (about 0.7 g)
1 tablespoon (15 ml) neutral oil, such as refined coconut oil or canola oil (optional, for a fuller texture)

Instructions

Put the oats in a fine-mesh strainer and rinse under cold running water for about 30 seconds, stirring them with your fingers. This washes away loose oat dust that can make the creamer gummy. Drain thoroughly.
Combine the rinsed oats and 3 cups (710 ml) cold water in a blender. Blend on low for 20 seconds, then on medium for 10 seconds. Avoid prolonged high-speed blending, which can release more starch and make the finished creamer thick or slimy.
Pour the mixture through a fine-mesh strainer into a bowl or large measuring jug. Let it drain naturally; gently press the oats once or twice with the back of a spoon, but do not squeeze them hard. For a smoother result, strain the liquid a second time through a clean, damp nut-milk bag or a fine, clean kitchen cloth.
Pour the strained oat milk into a small saucepan. Add the brown sugar, cinnamon, and salt. Warm over medium-low heat for about 3–5 minutes, stirring until the sugar dissolves and the liquid is steaming but not boiling. Gentle heating helps the flavor combine; boiling is unnecessary and can make the oat base thicker.
Take the pan off the heat. Stir in the vanilla and, if using, the neutral oil. If you want a particularly smooth, unified texture, carefully blend the warm mixture for just 5–10 seconds, taking care with hot liquid. The oil adds body but is optional; the creamer will separate more readily without it.
Cool until no longer steaming, then transfer to a clean, covered bottle or jar and refrigerate. Shake well before each pour. The creamer will be fairly thin when freshly made and may thicken slightly as it chills.

Tips

Keep blending brief. Oats become gummy when overworked. Blend just long enough to break them up, and do not leave them soaking in the blender while you prepare other ingredients.
Strain patiently. Let gravity do most of the work. Pressing firmly can force fine oat particles through the strainer and leave sediment in your coffee.
Adjust the sweetness after warming. Two tablespoons gives a gently sweet creamer. Add another teaspoon or two of brown sugar if you like a sweeter coffee, dissolving it while the mixture is warm.
Use a small amount of oil, if desired. It makes the drink feel richer, but too much can leave an oily surface. Refined coconut oil can firm up when very cold, so let the bottle sit briefly at room temperature and shake it well.

Serving Suggestions

Shake the chilled creamer and add 2–4 tablespoons (30–60 ml) to a mug of hot coffee, adjusting to taste. It also works in iced coffee or cold brew; for an iced drink, stir the creamer into the coffee before adding ice so it disperses evenly. The cinnamon and vanilla pair especially well with medium- or dark-roast coffee, but the flavor is mild enough for tea or chai, too.

For a more pronounced oatmeal-cookie flavor, dust the drink with a small pinch of cinnamon or add a few drops of vanilla. This creamer is not as thick as dairy cream, so it may not create stable latte art or whip into a topping. It can also be added to a bowl of warm oatmeal, where its brown sugar and spice make an easy finishing touch.

Variations

Maple cinnamon: Replace the brown sugar with 1½ tablespoons (30 ml) maple syrup. Stir it in after warming; the result is slightly less like a brown-sugar cookie and more gently maple-scented.
Extra-spiced: Add a small pinch of ground nutmeg or ginger with the cinnamon. Start with no more than ⅛ teaspoon, since the spices become more noticeable as the creamer rests.
Less sweet: Reduce the brown sugar to 1 tablespoon (12 g), or leave it out and sweeten each cup separately. The spices and vanilla will still give the base a cookie-like aroma.
Gluten-free: Choose oats labeled gluten-free if gluten avoidance is important. Oats can be exposed to gluten-containing grains during growing or processing, so ordinary oats may not be suitable for everyone who needs to avoid gluten.

Storage and Reheating

Transfer the creamer to a clean, covered container and refrigerate it within 2 hours of making. Use it within 3–4 days, and shake before every use because natural settling is normal. Discard it if it develops an off smell, unusual appearance, or signs of spoilage; do not leave it sitting at room temperature for extended periods.

To warm a portion, heat it gently in a small saucepan or microwave-safe cup, stirring once or twice. Use short microwave bursts and stop when it is warm; boiling can make the oat mixture thicker. If the chilled creamer has become very thick, stir in cold water a teaspoon at a time until it pours the way you like. Freezing is not recommended for the best texture, since thawing can make it separate or grainy.

Frequently Asked Questions

Can I make this without a blender?
Not with the same method, because the oats need to be broken up to flavor the water. A food processor may work, though it can be harder to strain smoothly. For a simpler option, start with 3 cups (710 ml) plain unsweetened oat milk and warm it with the sugar, cinnamon, and salt, then add vanilla; it will taste similar but have a different thickness.

Why did my creamer turn slimy?
It is usually caused by blending too long, using warm water, or squeezing the oat pulp hard through the strainer. Rinse the oats, use cold water, blend only briefly, and strain without force. If it is already noticeably slimy, it is difficult to correct; use it in oatmeal or another cooked dish instead of coffee.

Will it curdle in hot coffee?
Oat-based drinks can separate in some coffees, particularly very acidic or extremely hot coffee. Let freshly brewed coffee cool for a minute, then stir in the creamer gradually. Warming the creamer gently before adding it can also help; avoid boiling either liquid.

Can I use quick oats or steel-cut oats?
Old-fashioned rolled oats give the most reliable balance of flavor and easy straining. Quick oats can work but tend to release more starch and may make the creamer thicker. Steel-cut oats are too firm for this short blending-and-steeping method and are not a good direct substitute.

Can I make it sweeter or richer?
Yes. Add brown sugar a teaspoon at a time while the mixture is warm, tasting as you go. For a richer finish, include the optional tablespoon of oil; adding substantially more can make the creamer greasy rather than creamy.

Can I use this for frothing?
It may foam briefly, but it is not formulated to produce lasting, fine-textured foam like barista-style oat milk. The homemade oat solids and optional oil can affect the result. For a foamy coffee, use a commercial barista-style oat milk and add this creamer for flavor.

More recipes to cook

Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

Spotted an error? Tell us and we will correct it (corrections policy).