Baskin-Robbins is an international chain of ice cream parlors.  It has franchises in more than 30 countries. Out of 5800 locations, 2800 are based in the United States. It was founded in 1953 by the merger of two separate ice cream ventures of Burt Baskin and Irv Robbins, who were brothers-in-law. Before the merger, the two separate ice cream ventures were called Burt’s Ice Cream Shop and Snowbird Ice Cream. Snowbird Ice cream had 21 flavors at the time, which was praised as novel and fresh.

After the two ventures were combined into Baskin-Robbins, which would later become a world-famous ice cream parlor, pushed the slogan of ’31 flavors.’ Baskin-Robbins was creative in its approach to put forward the sampling system—letting people taste the different flavors of ice cream with small, single-use pink plastic spoons until they find the flavor that they want. Also, Baskin-Robbins was the first to introduce the ice cream cake to the public.

Original 31 Flavors
The original flavors when Baskin-Robbins first opened in 1945 were:

 Banana Nut Fudge
 Black Walnut
 Burgundy Cherry
 Butterscotch Ribbon
 Cherry Macaron
 Chocolate
 Chocolate Almond
 Chocolate Chip
 Chocolate Fudge
 Chocolate Mint
 Chocolate Ribbon
 Coffee 
 Coffee Candy
 Date Nut
 Eggnog
 French Vanilla
 Green Mint Stick
 Lemon Crisp
 Lemon Custard
 Lemon Sherbet
 Maple Nut
 Orange Sherbet
 Peach
 Peppermint Fudge Ribbon
 Peppermint Stick
 Pineapple Sherbet
 Raspberry Sherbet
 Rocky Road Nut
 Strawberry
 Vanilla
 Vanilla Burnt Almond

Current Flavors

Mint Chocolate Chip
Love Potion #31
Chocolate
Oreo Cookies 'n' Cream
Chocolate Chip
Pralines 'n' Cream
Very Berry Strawberry
Chocolate Chip Cookie Dough
Old Fashioned Butter Pecan
Jamoca
Peanut Butter Cup
Rocky Road
Peanut Butter 'n' Chocolate
Gold Medal Ribbon
World Class Chocolate
Cherries Jubilee
Chocolate Fudge
Daiquiri Ice
Rainbow Sherbet
Rainbow Chocolate Fudge Cake 
Wild And Reckless
Strawberry Cheesecake
Pokey Dot

Seasonal Flavors
America's Birthday Cake
Baseball Nut
Blueberry Cheesecake
Bourbon Street Pecan Pie
Brownie Bar Mashup
Cherry Cordial with Kisses
Chocolate Mousse Royale
French Vanilla
Eggnog
German Chocolate Cake
Icing On The Cake
Love Potion #31
New York Cheesecake
Nutty Coconut
Peppermint
Rock 'n' Pop Swirl
Reese’s Peanut Butter Cup
Trick Oreo Treat
Winter White Chocolate
Made With Snickers
Made With M&M's
Heath
Mango Tango
Pumpkin Cheesecake

Regional Flavors
Pink Bubblegum
Caramel Macchiato
York Peppermint Pattie
Cotton Candy
Orange Sherbet
Grape Ice 
Watermelon Ice
Miami Vice Sorbet
Splish Splash
Wild 'n' Reckless Sherbet
Lemon Custard
Oregon Blackberry
Bananas 'n' Strawberries
Mississippi Mud
Rum Raisin
Creole Cream Cheese
Chocolate Almond
Fudge Brownie
Banana Nut
Black Walnut
Cotton Candy Crackle
Quarterback Crunch
Chocolate Chocolate Chip Cheesecake
Caramel 'n' Cookies
Vomit

Bright Choices
Real Fruit Strawberry Sorbet
Premium Churned Light Raspberry Chip
Premium Churned Light Vanilla
Premium Churned Light Milk Chocolate
Premium Churned Dark Milk Chocolate
Premium Churned Reduced Fat, No Sugar Added Butter Almond Crunch
Premium Churned Reduced Fat, No Sugar Added Pineapple Coconut
Premium Churned Reduced Fat, No Sugar Added Brownie Sundae
Premium Churned Reduced Fat, No Sugar Added Caramel Turtle Truffle
Premium Churned Reduced Fat, No Sugar Added Moose Tracks
Premium Churned Reduced Fat, No Sugar Added Peanut Buttery Bar Blast
Fat Free Vanilla Frozen Yogurt

References

Other websites 
Official website

American food companies
1953 establishments
Companies based in Massachusetts