Step 1

Preheat the oven to 450 degrees.

Step 2

Brush a 9" cast iron skillet or 7x10 baking dish with 1 tbsp butter.

Step 3

Whisk together oat milk & vinegar to create buttermilk.

Step 4

Add all dry ingredients to a bowl; mix until well combined.

Step 5

Cut in the cold butter until fine crumbs.

Step 6

Stir in buttermilk and blueberries, mixing until just combined. Avoid overmixing.

Step 7

Roll out the dough to ½" to 3/4" thickness.

Step 8

Use a 3" biscuit cutter to cut out 8 biscuits.

Step 9

Place biscuits in the prepared skillet or baking dish.

Step 10

Bake for 17-20 minutes until the tops are lightly golden brown.

Step 11

Mix milk, powdered sugar, and cinnamon until smooth.

Step 12

Drizzle the glaze on top of the baked biscuits.

Step 13

Enjoy your delicious Blueberry Biscuits!