Step 1

Preheat the oven to 425°F. Line a large sheet pan with parchment paper.

Step 2

In a medium bowl, stir together the flour, cheddar, Parmesan, and cayenne. Add the yogurt and stir with a wooden spoon until just combined. Knead the dough in the bowl with your hands until smooth, 1 to 2 minutes. Divide the dough into 16 equal pieces, rolling each piece into a ball.

Step 3

Arrange the dough balls on the prepared pan. Brush each dough ball with egg white and top with 1 olive slice; press olive to slightly flatten the ball. Bake until lightly browned, 10 to 12 minutes.

Step 4

Serving size: 1 cheese puff