You could go to this iconic bakery and tourist attraction, Ellora's Melting Moments to grab some cold coffee and pastries (we’re sure someone told you to get something back from here). Ellora's is known for its famous Dehradun rusks, delicious muffins, and cupcakes. Also, make sure you take home some stick jaws for friends and family!
PS: Everything at Ellora's is super easy on the pocket. You can get most pastries at around INR 70, whereas the shakes are for about INR 100 each.