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Rice Krispies Squares


Rice Krispies Squares

Rice Krispies Squares
© Denzil Green


Rice Krispies Squares is a dessert made from Rice Krispies cereal bound together with a mixture of melted butter, melted marshmallows and vanilla flavouring.

The marshmallows are melted with the butter, the vanilla flavouring stirred in, then the Rice Krispies. The mixture is stirred well to combine all and is then turned into a buttered pan, usually square, then let sit. When firm, they are cut into squares.

Packaged, ready-made ones called Rice Krispies Treats were introduced 15 January 1995.

History Notes

1941 Rice Krispies Recipe

1941 Rice Krispies Square Ad & Recipe.
Winnipeg Free Press. Winnipeg,
Manitoba, Canada. 9 April 1941.
Page 12. Click for full size.

Rice Krispie Squares were first called "Marshmallow Squares." Two Kellogg's employees, Malitta Jensen and Mildred Day (1904 -1996), are credited with their invention in 1939.


You will read that similar recipes existed already at the time for Puffed Rice and Puffed Wheat. Similar, yes, in that they ended up as sticky squares, but neither recipe used marshmallows, drawing instead on ingredients such as molasses, and neither with the simplicity of Marshmallow Squares.

Rice Krispies cereal came on the market in America on 29th February 1928.

Mildred Day graduated from Iowa State University later that same year.

Rice Krispies Squares Ad

Advertisement for box side recipe in
The Muscatine Journal and News-Tribune.
Muscatine, Iowa. 13 March 1941. Page 8.

Mildred and Malitta Jensen both started working for Kellogg's in the late 1930s. Malitta had previously worked for the American Honey Institute. [2] Mildred had previously worked for the Pillsbury Cooking School (as a member of Mary Ellis Ames staff.) [3]

Mildred and Malitta invented the recipe in the Kellogg kitchens in Battle Creek, Michigan as a promotional vehicle for the cereal. Reputedly, it took them two weeks to perfect the recipe. [See her obit in Literature & Lore section below.]

The recipe first appeared in newspapers in 1940.

It first appeared on the cereal box in 1941.

The original recipe has never been changed.

Rice Krispies Squares

Moulton Weekly Tribune.
Moulton, Iowa.
10 September 1942. page 13

There is much misinformation floating around concerning the circumstances of the recipe's creation. Much of the disinformation sadly comes from this well-intentioned 1996 excerpt in the The Des Moines Register:

"[Mildred] Day was born in Durham, a village 8 1/2 miles east of Knoxville in Marion County [Iowa]. She was a home economics graduate of Iowa State University in Ames. Her family says Day, who worked at Kellogg Co. in Battle Creek, Mich., developed the recipe with Malitta Jensen as a fund-raiser for a Camp Fire Girls group. Anthony Hebron, Kellogg spokesman, says Rice Krispies cereal went on the market in 1928 and Rice Krispies Treats, a trademarked name, were introduced in the 1940s. The recipe first appeared on packaging in 1941. "Many of our employees created concoctions with Kellogg products," Hebron says." [1]

The confused assocation with the Campfire Girls likely came about because the recipe uses marshmallows; Campfire was a popular brand at the time. Rice Krispies Treats, the ready-made product, were not introduced until 1995.

Literature & Lore

1940s Rice Krispies Squares recipe

1940 Rice Krispies Squares recipe, with costs.
© Denzil Green

Mildred Day, the culinary genius behind Rice Krispies bars, died a week ago in Bloomington, Minn. She was 92.


Day and Malitta Jensen developed the chewy, gooey finger food—a mixture of Rice Krispies, marshmallows and butter — in the 1920s as a fundraising treat for a Camp Fire Girls group, and to promote the cereal of the Kellogg Co., where she worked after earning a degree in home economics from Iowa State University. [Ed. Some of the info in this para is muddled, and incorrect.]

When her daughter Sandra asked why she never made the snack for her, Day replied, "If you'd made them for two weeks from 6:30 in the morning until 10:30 at night you wouldn't want to make them again, either."

Kellogg now sells Rice Krispies Treats as individually wrapped snack bars.

Daily Herald. Chicago, Illinois. 16 June 1996. Page 11.

Acknowlegements

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Also called:

Rice Krispies Bars; Rice Krispies Squares; Rice Krispies Treats

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