Stir together melted butter, dried onion, and poppy seeds.
Separate biscuits, and dip each biscuit in butter mixture, turning to coat. Arrange biscuits, standing on edge, in a 9- x 5-inch loafpan, arranging in 2 rows. Brush with remaining butter mixture.
Bake at 350° for 25 to 30 minutes or until golden. Cool in pan 10 minutes.
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