Brownie Cakes in a Jar - canning jars

Method

• Grease two 1-pint straight-sided wide-mouth canning jars; line the bottom of each jar with waxed paper.
• Set aside.
• In a small bowl sitr together flour, sugar, baking soda and cinnamon, if desired.
• Set aside.
• In a medium saucepan combine margarine, water, and cocoa powder; heat and stir until margarine is melted and mixture is well blended.
• Remove from heat; stir in flour mixture.
• Add buttermilk, egg and vanilla; beat by hand until smooth.
• Stir in nuts.
• Pour mixture into the prepared canning jars.
• Cover the jars tightly with greased foil.
• (Place greased-side down on each jar).
• Place jars in a 3 1/2, 4, 5, or 6-quart crockery cooker with liner in place.
• Cover; cook on high heat setting for 2 3/4 to 3 hours or until cakes spring back when touched and a long wooden tooth-pick inserted near the centers comes out clean.
• Remove jars from cooker; cool 10 minutes.
• Unmold cakes; remove waxed paper.
• Serve warm or cool with ice cream.