02Beat the butter and brown sugar in a large bowl with a mixer on medium speed until light and fluffy, 3 minutes. Beat in the eggs one at a time, fully incorporating each before adding the next. Add the molasses, yogurt, ginger and lemon zest and beat until smooth, scraping the sides of the bowl as needed. Reduce the mixer speed to low and beat in the flour mixture to make a sticky batter (do not overmix). Fold in the oats and half of the raisins, cranberries and walnuts. Mix the remaining dried fruit and nuts in a small bowl and set aside.03Drop heaping tablespoonfuls of batter onto the prepared baking sheets. Top each with some of the reserved dried-fruit-and-nut mixture and chill for 30 minutes. Meanwhile, preheat the oven to 375 degrees.04Bake the cookies until dark golden but still soft, 10 to 12 minutes; cool on a rack. Store in an airtight container for up to 1 week.