Preheat oven to 400F. Prepare cookie sheets with parchment paper.

In a large bowl, combine flour, sugar, baking powder, and salt.

Add butter and mix with fingertips until crumbly.

In a separate small bowl, whisk egg and half-and-half. Quickly pour into the dry mixture and stir to combine, but don't overwork. Then stir in your blueberries.

Now you can either just lump them by the spoonful onto prepared baking sheets, or cut them into shapes. To do the shapes: lay the dough between 2 wax paper sheets ( I used flour on top the wax paper to help from sticking). pat down to about 1/2 inch thick. Remove top wax paper and use cookie cutters to cut out shapes.

Place on prepared cookie sheets.

Bake in oven for about 10 minutes until golden on top.