Heat oven to 400 degrees and move rack to the upper middle position.

In a mixing bowl, mix flour, baking powder, baking soda and salt. Then grate the frozen butter into the flour mixture on the large holes of a box grater. Add the grated cheese and the minced bacon. Work the butter, cheese and bacon into the flour until it becomes like course meal. You can also do this step in the food processor.

In a second bowl, whisk the Greek yogurt and egg.

Using a fork, stir the Greek yogurt mixture into flour mixture until large dough clumps form and there is no loose flour in the bowl. Then use your hands to press the dough into a ball. (There may not seem to be enough moisture at first, but as you work the dough it will come together.)

Turn out the dough onto a lightly floured surface or parchment paper and pat it into an 8-inch circle about ¾-inch thick. Use a sharp knife to cut into 8 triangles. Place the triangles on a cookie sheet lined with parchment paper about an inch apart. Sprinkle tops with salt, if desired. Bake until golden, about 16 to 18 minutes.

Enjoy!