Preheat Oven to 400 degrees. Line a baking sheet with parchment, if you are using it. It isn't necessary but makes for easy cleanup.
Place your all-purpose flour, whole wheat pastry flour, baking powder, sugar, and salt. Blend well. If you do not have a food processor, no problem, use a pastry cutter.
Add in your chilled butter and pulse 2 or 3 times. If you are using the pastry cutter, cut in until it resembles large peas.
Next, add in your egg and the buttermilk. Again, pulse or cut until it is well incorporated. When you add in the strawberries, I like to remove them from the food processor onto the countertop and gently knead them in.
You can cut your scones however you like, but I will tell you how I cut mine. Divide the dough in half. Gently press each half into a 6-inch circle. Then cut in half, and each half into thirds. Place the 12 pieces on your baking sheet.
Brush gently with the heavy cream and sprinkle with sugar. Move immediately into the hot oven.
Bake until they are a beautiful golden brown and risen. Remove from the oven.
Now on to the drizzle. Add your powdered sugar, lemon zest, vanilla, and 3 tablespoons fresh lemon quice to a boil. With a hand mixer or whisk, mix well. Check for consistency. If you need it thinner, add more lemon juice. Thicker? Add a little more powdered sugar.
Drizzle over your scones.
These are best eaten the day you make them. The fresh berries will make the scones too after more than a day.