Preheat oven to 400°F. Lightly butter baking sheet. Blend flour, sugar, baking powder and lemon peel in a food processor. Add butter and cut in (using "pulse" button) until mixture resembles coarse meal. Transfer mixture to large bowl. Make well in center; add 3/4 cup cream. Using fork, stir until just moist. Mix in ginger and cinnamon. Transfer dough to floured surface and gently knead until smooth, about 8 turns. Divide dough in half; pat each portion into 3/4-inch-thick round. Cut each round into 6 wedges and transfer to prepared baking sheet, spacing 1 inch apart. Brush tops with remaining 2 tablespoons cream.

Bake scones until light brown, about 18 minutes. (Can be made 1 day ahead.) Cool completely. Store in airtight container at room temperature. Rewarm in 350°F oven before serving.