Preheat oven to 400F

In a medium bowl, mix flour, salt, and baking powder.

Work in the cut cold butter into the flour using your fingers until it is unevenly crumbly, with biggest crumbs the size of peas.

Place ¾ cup starter and ¼ cup heavy cream along with ½ tablespoon orange juice.

Pour this into the flour mixture and using a fork, mix until dough comes together into a very shaggy ball.

Place the ball on a well-floured surface, sprinkle with flour and knead gently just to incorporate (for 2 seconds- do not over knead!) Pat into 6 x 10-inch rectangle. Spread orange marmalade in the dough. Fold up the sides into thirds like a trifold envelop and pat again into a 6 x10 inch rectangle. Fold up the sides into thirds again. Re-flour your work surface, adding more if needed. Pat into an 8 x 5-inch rectangle about 1 ½ inches tall. Cut into 6 equal pieces if you want big biscuits or cut it into small 12 pieces.

Place on a parchment-lined sheet pan and bake for 10 minutes at 400F . Then reduce the temperature to 375F and bake for another 10 minutes, rotating pan if necessary. Keep baking until biscuits are beautifully golden and internal temp reaches 205F. While they are warm brush with melted butter.

Enjoy warm with more orange marmalade.