Gerbeaud Cakes

Filling

• 8 oz walnuts whole
  oder 8 oz hazelnuts, without skin
• 8 oz sugar
• 1 lemon zest only, no white pith
• 2 oz dark raisins

Dough

• 2 oz whole milk
• 1 tsp active dry yeast
• 8 oz unsalted butter diced, room temperature
• 2 ½ oz sour cream
• 1 ½ oz sugar
• 1 egg yolk from large egg
• 17 ½ oz all-purpose flour
• 1 tsp baking powder
• ¼ tsp salt
• 6 oz apricot jam divided
• 5 oz dark chocolate chips
• 2 oz unsalted butter diced