¼tsp (scant)coarse Kosher salt(if using table salt, use half the amount)
¼cupsemi-sweet chocolate chips(plus extra for decorating the top of the cookie)
Instructions
Preheat the oven to 350 F, and position a rack in the center of the oven. Line a small baking sheet with a sheet of parchment paper.
In a small saucepan, melt the butter and 1 tbsp chocolate chips over low heat, stirring with a spatula until melted and smooth. Remove from the heat.
Add the granulated sugar, brown sugar, egg yolk and vanilla to the melted butter/chocolate, and stir until smooth.
Separately, sift together the flour, cocoa powder, corn starch, baking soda and salt. Add the dry ingredients and the 1/4 cup chocolate chips to the wet ingredients and stir into a dough.
Gather the dough into your hands, shape into a ball, then press into a flat disk measuring 1 inch thick and 4 1/2 inches wide. Place the disk of dough on the baking sheet.
Bake the cookie for about 12-14 minutes (12 minutes for a gooeyer center, and 14 minutes if you like it baked through). The baked cookie will spread to about 6 inches in diameter.
Cool on the baking sheet for 5 minutes. While the cookie is hot, press a few more chocolate chips on top of the cookie.
Enjoy warm, or at room temperature.
Keyword Chocolate, Cookies, Cookies for Two, High Altitude, Small Batch