A treasured family recipe made with fresh lemons and finished with a sweet lemon glaze.
These Lemon Oatmeal Cookies are a wonderful little family recipe with a special story behind them. The recipe came in a box of lemons that my uncle sent to my mother, and it quickly became one of those recipes worth keeping.
The cookies are light and crispy with a bright burst of fresh lemon in every bite. The oatmeal adds a little texture while the lemon glaze on top gives them even more fresh lemon flavor.
They are simple enough to make for an everyday treat but pretty enough to serve when company comes. If you love lemon desserts, these cookies are definitely worth trying.
Ingredients:
For the Cookies:
1 1/2 c. old-fashioned oatmeal
1 c. butter, unsalted and softened
1 c. sugar
1 Tbs. lemon zest
2 Tbs. lemon juice
3/4 tsp. baking soda
1/4 tsp. salt
1 c. flour
Glaze:
1/2 c. powdered sugar
3 Tbs. lemon juice
2 Tbs. lemon zest
1/3 c. sugar for pressing the cookies
Directions:
Preheat your oven to 350°F. Lightly spray your baking sheets with nonstick cooking spray or line them with parchment paper.
In a large mixing bowl, combine the softened butter and granulated sugar. Beat on high speed until the mixture is light and fluffy.
Add the lemon zest and lemon juice. Beat until well combined.
Add the dry ingredients. Mix in the baking soda and salt.
Gradually add the flour, mixing after each addition until it is fully incorporated.
Stir in the old-fashioned oatmeal until evenly distributed throughout the dough.
Place the 1/3 cup of granulated sugar in a shallow dish.
Using a tablespoon or small cookie scoop, scoop out the dough and roll each portion between your palms to form a ball.
Roll each dough ball in the granulated sugar, coating all sides.
Arrange the dough balls on the prepared baking sheets, leaving about 3 inches between them to allow room for spreading.
Dip the bottom of a drinking glass into the sugar, then gently press down on each dough ball to slightly flatten the top.
Repeat with the remaining cookies, dipping the glass in sugar as needed to prevent sticking.
Bake for about 10 minutes, or until the edges are just beginning to turn golden brown.
Be careful not to overbake them if you want to keep their light, crisp texture.
Allow the cookies to cool on the baking sheet for a few minutes, then transfer them to a wire rack to cool completely.
Once the cookies have cooled, combine the powdered sugar, lemon juice, and lemon zest in a small bowl. Stir until smooth.
Dip the top of each cooled cookie into the lemon glaze.
Return the glazed cookies to the wire rack and allow the glaze to harden before serving.
Tips for Best Success:
- Use fresh lemons. Freshly squeezed lemon juice and freshly grated zest give these cookies their best flavor.
- Soften the butter properly. The butter should be soft enough to beat easily with the sugar but not melted.
- Don't overbake. The cookies should just begin turning golden around the edges. Overbaking can make them harder than intended.
- Give them room to spread. These cookies spread as they bake, so the 3-inch spacing is important.
- Use sugar on the glass. Dipping the bottom of the glass in sugar keeps it from sticking to the cookie dough.
- Cool completely before glazing. If the cookies are still warm, the lemon glaze can become too thin and run off.
- Let the glaze harden. Give the glazed cookies time to set before stacking or storing them.
Variations and Substitutions:
- More lemon flavor: Add a little extra lemon zest to the cookie dough or glaze.
- Meyer lemons: If you have Meyer lemons, they can be used for a slightly sweeter, more delicate lemon flavor.
- Quick oats: Quick oats can be substituted for old-fashioned oats, although the texture will be a little softer and less hearty.
- Orange oatmeal cookies: Substitute orange zest and orange juice for the lemon to make a delicious orange version.
- Lime cookies: Fresh lime juice and zest can be used for a bright lime variation.
- Extra glaze: If you like a generous amount of glaze, simply make a little more. The cookies are delicious with plenty of lemon icing on top.
- A touch of vanilla: A small amount of vanilla extract can be added to the dough for another layer of flavor.
Serving Suggestions:
These Lemon Oatmeal Cookies are wonderful with a cup of coffee or tea. They also make a nice light dessert after lunch or dinner.
For a pretty dessert tray, serve them alongside other homemade cookies and bars. Their bright lemon flavor also makes them especially nice for spring and summer gatherings, showers, picnics, and family get-togethers.
How to Store:
- Store the completely cooled cookies in an airtight container at room temperature for several days.
- If stacking the cookies, make sure the lemon glaze has completely hardened first. Place parchment or wax paper between layers if needed to keep the glazed tops from sticking together.
- For longer storage, the cookies can be frozen in an airtight, freezer-safe container. Thaw them at room temperature.
Frequently Asked Questions:
Can I use bottled lemon juice?
Fresh lemon juice is recommended because it gives the cookies a brighter, fresher lemon flavor, especially since lemon is the main flavor of the recipe.
Can I use quick oats instead of old-fashioned oatmeal?
Yes. Quick oats will work, although they will give the cookies a somewhat softer texture.
Why do I need to leave so much space between the cookies?
The dough spreads as it bakes. Leaving about 3 inches between the dough balls helps keep the cookies from spreading into one another.
Why do I roll the dough in sugar?
The sugar coating adds a delicate crispness and a little extra sweetness to the outside of the cookies.
Can I skip the glaze?
You can, but the lemon glaze adds a wonderful burst of fresh lemon flavor. It is especially good on these lightly flavored, crispy cookies.
How do I keep the cookies crispy?
Allow them to cool completely before storing them and keep them in an airtight container at room temperature. Avoid storing them while they are still warm.
Can I freeze Lemon Oatmeal Cookies?
Yes. Allow the cookies and glaze to set completely, then freeze them in an airtight freezer-safe container. Separate layers with parchment paper.






