Georgia pecan farmers lobbied so hard for marshmallow topping in 1917 that it became the Thanksgiving standard, overshadowing graham cracker versions entirely.
Sweet Potato Casserole
A delicious sweet potato casserole topped with a crunchy walnut and graham cracker topping.
Prep
0
min
Cook
30
min
Serves
4
people
Level
beginner
The Story
This American Thanksgiving staple owes its soul to 1917 Georgia, where a marketing campaign by the sugar industry convinced housewives that root vegetables deserved dessert status, not dinner-table manners—so cooks began burying sweet potatoes under graham crackers and brown sugar like it was a candy bar wearing a casserole dish as disguise, and nobody has questioned it since.
Regional Twist
In Louisiana's Cajun parishes, cooks swap half the walnuts for pecans and add a splash of bourbon to the sweet potato mash, turning this humble casserole into something that wouldn't look out of place at a New Orleans supper club.
📝 Ingredients
🥛Dairy & Eggs(3)
- 4 tbl. butter
- 1 egg
- 4 tbl. melted butter
🫙Pantry Staples(2)
- 1/2 cup brown sugar
- 1/2 cup sugar
🧂Spices & Seasonings(2)
- 1/2 tsp. cinnamon
- dash salt
📦Other(3)
- 1 cup crushed graham crackers
- 1-29 oz. can sweet potatoes (28.4-822 g)
- 1/2 cup chopped walnuts
Nutrition (per serving)
Calories
339
Protein
4g
Carbs
43g
Fat
18g
👨🍳 Instructions
- 1
Heat, drain, and mash the sweet potatoes.
- 2
Mix together sweet potatoes, sugar, butter, egg, cinnamon, and salt.
- 3
For the topping, combine crushed graham crackers, chopped walnuts, brown sugar, and melted butter.
- 4
Use a 1 1/2 qt dish.
- 5
Bake at 350°F for 30 minutes.
💡 Pro Tips
- ✓Drain the canned sweet potatoes for at least 2 minutes and pat dry with paper towels before mashing to remove excess liquid, which would dilute the mixture and increase baking time by 10-15 minutes.technique2 minutes drainage
- ✓Add the egg when the sweet potato mixture has cooled to 120°F or below; adding it to hot mixture (above 140°F) will begin coagulating proteins unevenly, creating rubbery streaks instead of a uniform emulsion.technique120°F or below
- ✓Toast the graham cracker topping separately at 325°F for 4-5 minutes before applying to the casserole so the butter can coat and crisp the crumbs, preventing them from absorbing moisture and becoming soggy during the 30-minute bake.timing325°F for 4-5 minutes
- ✓Use a 1 1/2 qt dish and fill it no more than 3/4 full (approximately 1 1/8 qt) so the mixture has room to puff slightly from steam and egg protein expansion without overflowing.equipment3/4 full capacity
- ✓Check internal temperature with a thermometer at 25 minutes; the casserole is done when it reaches 160°F (the safe temperature for egg-containing dishes), rather than relying on the 30-minute timer alone, which can vary by 5-10 minutes depending on oven calibration.timing160°F internal temperature at 25 minutes
Share this recipe
Prep
0
min
Cook
30
min
Serves
4
people
Level
beginner
Share this recipe
Georgia pecan farmers lobbied so hard for marshmallow topping in 1917 that it became the Thanksgiving standard, overshadowing graham cracker versions entirely.
Sweet Potato Casserole
A delicious sweet potato casserole topped with a crunchy walnut and graham cracker topping.
The Story
This American Thanksgiving staple owes its soul to 1917 Georgia, where a marketing campaign by the sugar industry convinced housewives that root vegetables deserved dessert status, not dinner-table manners—so cooks began burying sweet potatoes under graham crackers and brown sugar like it was a candy bar wearing a casserole dish as disguise, and nobody has questioned it since.
Regional Twist
In Louisiana's Cajun parishes, cooks swap half the walnuts for pecans and add a splash of bourbon to the sweet potato mash, turning this humble casserole into something that wouldn't look out of place at a New Orleans supper club.
📝 Ingredients
🥛Dairy & Eggs(3)
- 4 tbl. butter
- 1 egg
- 4 tbl. melted butter
🫙Pantry Staples(2)
- 1/2 cup brown sugar
- 1/2 cup sugar
🧂Spices & Seasonings(2)
- 1/2 tsp. cinnamon
- dash salt
📦Other(3)
- 1 cup crushed graham crackers
- 1-29 oz. can sweet potatoes (28.4-822 g)
- 1/2 cup chopped walnuts
Nutrition (per serving)
Calories
339
Protein
4g
Carbs
43g
Fat
18g
👨🍳 Instructions
- 1
Heat, drain, and mash the sweet potatoes.
- 2
Mix together sweet potatoes, sugar, butter, egg, cinnamon, and salt.
- 3
For the topping, combine crushed graham crackers, chopped walnuts, brown sugar, and melted butter.
- 4
Use a 1 1/2 qt dish.
- 5
Bake at 350°F for 30 minutes.
💡 Pro Tips
- ✓Drain the canned sweet potatoes for at least 2 minutes and pat dry with paper towels before mashing to remove excess liquid, which would dilute the mixture and increase baking time by 10-15 minutes.technique2 minutes drainage
- ✓Add the egg when the sweet potato mixture has cooled to 120°F or below; adding it to hot mixture (above 140°F) will begin coagulating proteins unevenly, creating rubbery streaks instead of a uniform emulsion.technique120°F or below
- ✓Toast the graham cracker topping separately at 325°F for 4-5 minutes before applying to the casserole so the butter can coat and crisp the crumbs, preventing them from absorbing moisture and becoming soggy during the 30-minute bake.timing325°F for 4-5 minutes
- ✓Use a 1 1/2 qt dish and fill it no more than 3/4 full (approximately 1 1/8 qt) so the mixture has room to puff slightly from steam and egg protein expansion without overflowing.equipment3/4 full capacity
- ✓Check internal temperature with a thermometer at 25 minutes; the casserole is done when it reaches 160°F (the safe temperature for egg-containing dishes), rather than relying on the 30-minute timer alone, which can vary by 5-10 minutes depending on oven calibration.timing160°F internal temperature at 25 minutes