Chop together in blender or food processor 1 cup Sugar and 2 Tablespoons dried Lavender flowers (can be purchased at natural food stores). This will make 1 cup of Lavender Sugar.
Heat oven to 425℉/218℃.
Grease large baking sheet.
In large bowl combine the Flour, ¼ cup Lavender Sugar, Baking Powder, and Salt by hand.
With a pastry blender, cut in Butter until mixture resembles coarse crumbs.
Separate the egg and reserve the wWhite for the top.
Beat the Egg Yolk and then stir in Milk and Cream.
Add to Flour mixture and stir lightly with fork just until mixture clings together and forms soft dough.
Knead gently several times.
Place dough on baking sheet and roll or pat into a circle ¾ inch high.
Cut into 12 wedges and separate wedges slightly apart.
Poke the tops of the wedges several times with tines of a fork.
Brush with reserved Egg White and sprinkle with remaining 1 Tablespoon Lavender Sugar.
Bake for 15-20 minutes at 425℉/218℃ until edges are golden brown and the centers appear done.
Cool on rack.