Heat oven to 350°F. Spray large cookie sheet with nonstick cooking spray. In large bowl, combine quick bread mix, butter and eggs; stir 50 to 75 strokes with spoon until mix is moistened. (Dough will be sticky.) Stir in vanilla chips.
Sprinkle work surface with 1 to 2 tablespoons of the flour. Turn dough out onto floured surface. Roll dough into ball, adding flour as necessary to prevent sticking. Divide dough in half; place on sprayed cookie sheet. Form each half into 9x3-inch loaf, placing 4 inches apart. Flatten tops slightly.
Bake at 350°F. for 23 to 30 minutes or until light golden brown. Remove from oven. Cool 15 minutes.
On cutting board, cut each loaf into 3/4-inch crosswise slices. Place slices upright and 1 inch apart on same cookie sheet.
Return to oven; bake an additional 12 to 18 minutes or until golden brown. Remove from oven; sprinkle with powdered sugar. Cool 10 minutes. Serve warm or cool.