Melt chocolate in a double boiler over medium heat and let cool slightly. In a large bowl, beat eggs and flour. Beat in melted chocolate until combined. Fill paper-lined mini muffin cups 2/3 full. Bake at 325 degrees for 7 to 10 minutes, until edges are done and centers shake slightly. Cool in tin on wire rack for 20 minutes. Remove from tin; cool completely. Garnish with whipped cream and chocolate shavings.