Preheat oven to 375°F (190°C). Line a 9×5-inch loaf pan with parchment. Stir flour and cottage cheese in a bowl until a sticky dough forms.

Turn dough onto a floured surface, shape into a ball, then pat into a rectangle. Place in the prepared pan, tucking edges under.

Bake 50 to 55 minutes until deep golden and hollow-sounding. Tent with foil if browning too quickly. Cool in pan 5 minutes, then lift out.

Cool on a wire rack at least 20 minutes, then slice with a serrated knife and serve.