French Macarons-should we love you or hate you? - Simple Indeed

Ingredients

• 2 egg whites (about 80g) (1 part)
• 40 grams ganulated sugar (0.5 part)
• 64 grams almond flour (0.8 part)
• 128 grams icing sugar (1.6 part)
• 1 teaspoon vanilla extract
• 1/4 teaspoon kosher salt
• 2 egg yolks (about 30g)
• 30 grams fine granulated sugar
• pinch salt
• 1/4 vanilla bean (seeds only)
• 115 grams butter (1 stick, soft enough to spread with a knife)