Pulse the flour, sugar, Clabber Girl Baking Powder, Clabber Girl Baking Soda, salt and nutmeg in a food processor. Add the butter and pulse a few times till the mixture looks crumbly. Pour in the milk and pulse, just till it pulls together. Knead a few times on a floured surface, flatten into a disc, wrap in plastic and refrigerate for about an hour or overnight.
Pre-heat the oven to 375 degrees F.
Toss the apples, berries, water, 3 Tbsp. of the sugar, cinnamon and flour till mixed. Place in the baking dish. Roll the refrigerated dough, or pat with your hand, to a 1/4 inch thickness. Cut into 6 or 8 circles, or make fanciful shapes and place over the fruit. Brush with milk and sprinkle with the remaining 2 Tbsp. of sugar.
Bake for about 25 to 30 minutes, until the biscuits are golden brown and the fruit looks thickened and bubbly.
Recipe by Mani Niall.