admin 10 min. 30-35 min.
Heat oven to 350. Use a 9x13" pan lined with foil. Melt Chocolate & Butter in small saucepan over low heat. Stir constantly until chocolate melts. Cool to room temperature. Whisk Eggs, Sugar & Vanilla together. Fold in cooled Chocolate mixture. Sift Flour over & then fold in until just combined. Turn out into pan. Drop jam evenly over batter. Swirl a pattern with tip of a knife.
Bake 30-35 minutes or until surface is almost firm when lightly tapped. Toothpick should be mostly clean. Cool completely before cutting.