Tahini Chocolate Cakes

Directions

1. 1
   Heat oven to 350 degrees. Use butter to grease 6 half-cup muffin molds or similar, or use smaller molds. Dust molds with cocoa and sprinkle the sesame seeds in the bottom of each. Sift together remaining 1/3 cup cocoa with the flour and a pinch of salt. Set aside.
2. 2
   Melt chocolate and remaining 10 tablespoons butter in a heatproof bowl over simmering water, or in a small, heavy saucepan on very low heat. (Watch carefully if using a saucepan.) When almost completely melted, remove from heat and stir until smooth. Set aside.
3. 3
   Using a whisk or electric beater, whisk eggs and sugar together until pale and fluffy, about 5 minutes. Stir a little of this mixture into the tahini to lighten it, then stir the tahini into the egg mixture. Stir in the cooled chocolate mixture. Fold in the cocoa mixture.
4. 4
   Pour the batter into the molds and set molds on a baking sheet. Place in the oven and bake 12 to 14 minutes, less for smaller molds. A skewer or toothpick inserted in the middle should not come out clean.
5. 5
   Cool 20 minutes or more before unmolding. Dust tops with lime zest and serve with creme fraiche or ice cream.