Rugelach, Yeast-Raised, w/Chocolate and Raspberry Jam Filling

Ingredients

• 2 packages active dry yeast
• 3/4 cup whole milk, heated to lukewarm
• 1 tablespoon sugar
• Yolks of 2 large eggs
• 2 teaspoons vanilla extract
• Finely grated zest of 1 lemon
• 1/2 pound unsalted butter, melted and cooled
• 3 1/2 cups all purpose flour, plus more as needed
• Pinch of salt
• 1 cup sugar
• 1/2 cup slivered almonds, toasted
• 2 tablespoons unsweetened cocoa powder
• 1/2 cup semisweet chocolate chips
• 2 tablespoons unsalted butter, at room temperature
• About 3/4 cup seedless raspberry jam
• 1/3 cup sugar
• 1 teaspoon unsweetened cocoa powder
• 2 tablespoons ground almonds
• Whites of 2 large eggs