Gather all ingredients. Preheat the oven to 375 degrees F (190 degrees C).

Combine flour, brown sugar, baking powder, and salt in a bowl. Cut in cold butter with two knives or a pastry blender until the mixture resembles coarse crumbs. Add blueberries and toss to combine.

Whisk cream and egg together in a separate bowl until well combined; slowly pour into dry ingredients and stir with a rubber spatula until a dough starts to form.

Transfer mixture to a lightly floured surface and knead just until it comes together, 3 or 4 times; don't overwork the dough. Divide dough in half, then form each half into a 6-inch round.

Transfer to an ungreased baking sheet and cut each round into 6 wedges.