Vanilla Collagen Cupcakes!

Ingredients

• 3/4 cup all purpose or gluten-free baking flour
• 1/2 cup unflavored collagen powder
• 1/4 cup sugar
• 1/2 tsp baking powder
• 1/2 tsp baking soda
• 1/4 tsp salt (optional)
• 1/4 cup egg whites
• 1/4 cup greek or dairy-free yogurt
• 3 tbsp butter, melted
• 2 tsp ACV or white vinegar
• 1 ½ tsp pure vanilla extract