Canterbury Jumbles

• 2 eggs
• 1 stick
• 700 gr semisweet chocolate chips
• 450 gr flour
• 400 gr firmly packed dark brown
• 250 gr raisins
• 140 gr macadamia nuts coarsely
• 120 ml buttermilk
• 95 gr vegetable shortening (solid)
• 80 gr unsweetened flaked coconut