Fudgy Salted Caramel Brownies

all-purpose, whole wheat, or gluten-free* flour (measured correctly)

unsweetened cocoa powder (measured correctly)

baking powder

salt (regular fine-grained)

large eggs, lightly beaten

canola or vegetable oil

vanilla extract

granulated sugar

nonfat milk

plain nonfat Greek yogurt

caramel squares, diced (such as Kraft)

scant ¼ tsp coarse sea salt