Preheat oven to 400°F / 200°C / Gas mark 6.
In a mini food processor (or in a zip top bag with a rolling pin or meat mallet), break up freeze-dried strawberries until there are pieces no larger than a pea.
Whisk flour, sugar, baking powder, salt, and freeze dried strawberries together in a medium bowl.
Add the very cold butter to dry ingredients and use a pastry blender, fork, or your fingers to work the butter into the flour until it resembles coarse crumbs.
Beat egg, cream, and gel food color, if using, together. Make a well in the center of the flour mixture and add to dry ingredients. Stir with spatula until just combined and no big pockets of flour remain.
Turn dough out onto lightly floured surface and press together. Very gently knead the dough, if it is too crumbly, to get it to hold together - no more than 30 seconds. If dough gets too warm, place it in the freezer for 15 minutes.
Pat scone dough into a 1 inch thick round.
Dip a medium-sized cutter into flour, then press straight down into dough and pull straight up. Do not twist the cutter. Place scones on parchment-lined baking sheet. Repeat until all the dough is used up. Gather and lightly press dough together to cut the last few.
Brush tops with 2 tbsp. cream, sprinkle each scone with 1 tsp. coarse sugar and bake for 14 - 16 minutes.
Place on cooling rack to cool slightly before serving.