In a large bowl, stir together flour, baking powder, baking soda, and salt.
Cut in butter or coconut oil until the mixture looks crumbly.
Make a well in the center of the flour mixture and pour in the sour cream, mixed with sugar, honey, or maple syrup (if using). Stir lightly until the dough comes together. If the dough is dry, add more sour cream or milk, a tsp at a time, as needed.
Turn the dough out onto a floured surface and knead gently about 20 times.
Roll out until 1/2" thick. Cut out biscuits with a floured biscuit cutter and place on greased baking tray.
Bake at 450 degrees for 10 - 12 minutes, until lightly golden brown.
Brush with melted butter. Serve warm.