These Dr. Seuss Rainbow Sprinkle Cookies are soft, colorful, and irresistibly fun for kids and adults alike. Quick to make and bursting with vanilla flavor and rainbow sprinkles, they’re perfect for parties, lunchboxes, or any day that needs a little extra joy.
For thicker cookies, chill the dough for 20–30 minutes before baking. Use jimmies or confetti sprinkles for best results—avoid nonpareils as they bleed color. Don’t overmix the dough after adding flour. Cookies will continue to bake from residual heat after removing from the oven. Store in an airtight container for up to 4 days, or freeze for longer storage. For gluten-free or dairy-free adaptations, use a 1:1 gluten-free flour blend and plant-based butter/milk.
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