Brown the butter in a skillet until fragrant and nutty. Let cool until it is only slightly warm still (it should still be melted, but not hot).
Combine the butter and sugar and whisk to combine.
Add the egg and beat to combine.
Whisk in vanilla.
Add the flour, baking soda, and salt to the bowl. Mix until just combined with a spoon.
Fold in chocolate chips.
Preheat the oven to 350 degrees F.
Scoop 2 tablespoons of dough onto a parchment lined baking sheet, placing about 2 inches apart. You should get about 12.
Bake for 8-10 minutes, pulling them out at 8 minutes for soft gooey centers and 10 minutes for fully set crispy cookies. Cool for 10 minutes on the baking sheet, then transfer and cool completely before storing.
Store in an air-tight container for 3-5 days (They will keep longer, but are best fresh!)
Recipe by Alisons Allspice at https://www.alisonsallspice.com/browned-butter-spelt-flour-chocolate-chip-cookies/