Melt ยฝ cup butter in a small saucepan on low heat.
ยฝ cup butter
Remove from heat and whisk in โ
cup erythritol, ยฝ cup lime juice, and zest from 1 lime until dissolved.
โ
cup erythritol, ยฝ cup lime juice, 1 lime
Whisk in 6 egg yolks and return to the stove over low heat.
6 egg yolks
Cook over same low heat, whisking continually until it starts to thicken.
Remove from the heat. Whisk in ยผ teaspoons xanthan gum and 1 tablespoons gelatin until dissolved and smooth.
ยผ teaspoons xanthan gum, 1 tablespoons gelatin
Pour this filling over the crust and spread out evenly.
Bake the bars at 350 degrees F / 176 degrees C for 15 minutes.
Remove from oven and cool for 30 minutes.
Cut into 2 x 2-inch squares.
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