If you are a lemon fan, then you will LOVE these Jello Lemon Cake Bars. They are so easy to make and taste delicious!

My Grandma made these Jello Lemon Bars and they were so good, I just had to make them again! If you love lemon, you are going to LOVE these!
Recipe Ingredient Notes
To make Jello Lemon Bars, you will need the following ingredients:
Bars
- Yellow cake mix
- Lemon jello
- Eggs
- Water
- Vegetable oil
Icing
- Powdered sugar
- Lemon, juiced
- Butter, melted
Equipment Needed
For this recipe, you only need a few simple kitchen tools. We recommend using the following equipment:
How to make Jello Lemon Bars
- Preheat oven to 350℉.
- Mix together the cake mix, jello mix, eggs, water and oil. Beat on medium speed until well blended.
- Spray a 9 × 13 inch glass pan with non-stick spray and pour your batter into pan
- Bake for 35 to 40 minutes or until a toothpick comes out clean.
- As soon as you remove it from the oven, poke holes all over the cake with the end of a wooden spoon.
- Prepare the icing while the cake is cooking so you can pour the icing over the cake while it is still warm out of the oven.
Storage Suggestions
If you manage to have any leftover Bars + Brownies, these can store well if prepped appropriately. Once they have cooled completely, here is how you can store it:
- Counter: Store bars and brownies in an airtight container at room temperature for up to 4 days. If your kitchen is particularly warm, consider refrigerating instead to prevent them from getting too soft or melty.
- Refrigerator: Place in an airtight container and refrigerate for up to 1 week. Let them come to room temperature before serving for the best texture and flavor.
- Freezer: To freeze, make sure bars and brownies are completely cooled and unfrosted. Wrap tightly in plastic wrap (or Press & Seal) and then place in a freezer-safe bag or container. For easier portioning, wrap individual squares before freezing. Don’t forget to label with the date. They’ll stay fresh in the freezer for up to 3 months.
Enjoy More Delicious Citrus Bars Recipes
There’s nothing better than an easy brownie or bar recipe. Check out our comprehensive list of brownies, bars, and blondies here.

Jello Lemon Bars Recipe
If you are a lemon fan, then you will LOVE these Jello Lemon Cake Bars. They are so easy to make and taste delicious!
ServingServings
Ingredients
- 18.25 ounces yellow cake mix
- 3 ounce lemon jello*
- 4 eggs
- ¾ cup water
- ¾ cup vegetable oil
Icing
- 2 cup powdered sugar
- 2 lemon, juiced
- 2 Tablespoons butter, melted
Equipment
Instructions
- Preheat oven to 350℉.
- Mix together the cake mix, jello mix, eggs, water and oil. Beat on medium speed until well blended.
- Spray a 9 × 13 inch glass pan with non-stick spray and pour your batter into pan
- Bake for 35 to 40 minutes or until a toothpick comes out clean.
- As soon as you remove it from the oven, poke holes all over the cake with the end of a wooden spoon.
- Prepare the icing while the cake is cooking so you can pour the icing over the cake while it is still warm out of the oven.
Icing
- Mix together powdered sugar, lemon juice, and melted butter.
- Pour the frosting over the cake while it is still warm from the oven. That way the frosting will seep into the cake.
- You can serve it warm or cold.
Notes
Make sure you use lemon jello mix, not premade jello.
Nutrition
Calories: 212 kcal · Carbohydrates: 23 g · Protein: 2 g · Fat: 14 g · Saturated Fat: 10 g · Trans Fat: 1 g · Cholesterol: 48 mg · Sodium: 58 mg · Potassium: 37 mg · Fiber: 1 g · Sugar: 21 g · Vitamin A: 113 IU · Vitamin C: 8 mg · Calcium: 11 mg · Iron: 1 mg
Did You Make This Recipe?We’d love to hear your thoughts! Leave a review or a question in the comment section below the post.
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