First, let's prepare the brown butter. Cut your butter into large chunks and then add them to a medium-sized pan. Bring it to medium heat. Swirl the butter around so that it melts evenly. Once fully melted, stir constantly with a rubber spatula and let cook for about 4 more minutes until browned. You'll know it's ready when it starts to have a strong nutty smell and brown sediment begins to form on the bottom of the pan. Immediately transfer brown butter to a large bowl and let it cool down for about 10 minutes.
½ cup unsalted butter
While the brown butter is cooling, add all of the dry ingredients to a medium bowl and whisk until combined. Set aside.
1 ¼ cups gluten free 1-to-1 flour, 2 tsp matcha powder, ½ tsp baking soda, ¼ tsp baking powder, pinch of kosher salt
Add the sugar to the bowl with the cooled brown butter. Whisk until combined. Then, add in the egg and vanilla and whisk again.
¾ cup cane sugar, 1 large egg, 1 tsp vanilla extract
Pour dry ingredients into the wet ingredients and use a spatula to incorporate. The dough won't be very thick. Cover the bowl with plastic wrap and transfer it to the fridge to chill for at least 2 hours, or overnight.
Once the dough has chilled, preheat your oven to 350F and line a baking sheet with parchment paper or a silicone baking mat. Scoop out ~2 tbsp (40g) of the dough and roll into a ball. I usually have enough to make 11 cookies, plus one mini one. Optionally, roll the dough balls in some cane sugar. Then, place them at least 2" apart on the prepared baking sheet.
2 tbsp cane sugar
Transfer baking sheet to the oven and bake for 11-12 minutes. Smack the baking sheet on your countertop several times to help them flatten and get crinkly tops. Then, immediately top them with candy eyeballs. These cookies have somewhat firm, crinkly tops so you will have to press the eyeballs in slightly to make them stick. Enjoy!
small candy eyeballs