Chocolate Mint Cookies (Gluten-Free & Vegan)

Name: Chocolate Mint Cookies (Gluten-Free & Vegan)
Prep time: 10 min
Cook time: 10 min
Total time: 20 min
Cuisine: American
Ingredients: ½ cup (113g) salted vegan butter, room temperature; ¾ cup (150g) granulated sugar; ⅛ cup (29g) vegan sour cream/yogurt, room temperature; ½ tablespoon pure peppermint extract; 1 cup (160g) gluten-free all-purpose flour blend *check to see if it contains xanthan gum; ½ cup (50g) cocoa powder; ½ teaspoon baking soda; ½ teaspoon fine sea salt; ¼ teaspoon baking powder; ¼ teaspoon xantham gum *omit if already contained in the gf flour blend or using regular flour; 1 cup vegan dark chocolate chips; optional: coarse sea salt for sprinkling