In medium bowl, mix flour, sugar, salt, melted brown butter and vanilla until just smooth. Place batter in 8-inch pan and press with your hands until smooth and level. With fork, dock (prick) dough all over to insure crust cooks evenly and doesn’t bubble up. Place crust in fridge for about 15 minutes to chill.
Bake at 350 degrees F for about 20-22 minutes until edges light golden brown. Remove from heat and slightly cool. Keep oven on.