"These muffins are absolutely delicious. The secret is in NOT mixing the batter too much: the less you mix, the better the muffins are. You can replace the blueberries with chocolate chips to make an even better muffin--so my kids say."
"A boxed cake mix and raspberry jam simplify assembly of these sweet treats from Diana Olmstead. 'The bars are very rich, so cut them into small pieces,' suggests the Yelm, Washington cook."