Add 1 cup unsweetened almond milk to your blender as the base.
Spoon in 1/4 cup full-fat coconut milk (or 2 tablespoons heavy cream) for creaminess.
Add 1 teaspoon pure vanilla extract and 1/2 to 3/4 teaspoon ground cinnamon.
Sweeten to taste with your preferred keto sweetener.
Start with 1 to 1 1/2 teaspoons of granulated allulose or erythritol, or a few drops of stevia, and adjust after blending.
Add 1 tablespoon chia seeds or 1 tablespoon ground flaxseed to thicken and add fiber.
If using, add a scoop of collagen peptides or unflavored whey isolate for extra protein.
Drop in a pinch of sea salt to brighten the flavors.
Add a large handful of ice (about 1 to 1 1/2 cups) for a cold, thick texture.
Blend on high for 30–45 seconds, until smooth and creamy. If it’s too thick, add a splash of almond milk. If it’s too thin, add more ice or another 1/2 tablespoon chia and blend again.
Taste and adjust sweetness or cinnamon.
Pour into a chilled glass and sprinkle a little extra cinnamon on top if you like.