I made these cookies with cooking matcha, white chocolate and pine nuts.
Jason's Matcha-Matsu-White Choko Cookies
½ cup (113 g) unsalted butter
¼ tsp salt
½ cup unprocessed cane sugar (blond) (roughly 80g)
½ tsp. pure vanilla essence (some may want to reduce this to avoid competition with green tea flavor)
1 tsp. Matcha for Cooking by Three Tree Tea
1 tsp. baking powder
1 cup flour (roughly 150 g)
3.5 oz. (100g) white chocolate, chopped
2 tbsp. raw pine nuts (matsu-no-mi in Japanese)
Cream butter with salt and sugar. Add matcha, egg and vanilla and mix until consistent. Stir in baking powder and flour. Stir in pine nuts and white chocolate.
Drop in 1 tbsp. portions on a baking sheet with room for 3" diameters. Bake at 375F (190C) 12-15 minutes until edges are lightly browned. Rest before removing from sheet. Yields 16-20 cookies.
Because of the potential for oxidation of the matcha I don't recommend storing a supply of the dough, but you may consider freezing in an airtight container. I have made similar cookies without the white chocolate before, but with a touch more sugar.
If it’s more convenient, you can use Three Tree Tea’s Matcha Latte mix instead of the cooking matcha. Use 4 teaspoons of the matcha latte mix and only use 3 level tablespoons sugar. In the pictured version, I used Grade A or “gold” Three Tree Tea cooking matcha, but with something crispy and low-moisture like a cookie, you should get good results from the Grade B.