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Oatmeal Bars
GourmetDinnerHealthy Eating

Oatmeal Bars

Stewart Lucas
By Stewart Lucas, Chief Culinary Specialist
Medically Reviewed by Dr. Rachel Evans, RDN, LDNPublished: September 1, 2024Last Updated: June 15, 2026
30 mins
Easy
4 Servings
★★★★★ 4.9 (47 reviews)
Quick Summary Answer
⏱️ 4 min read read📅 Updated: June 15, 2026

This chef-curated Oatmeal Bars offers an authentic, wholesome dining experience. Created by Chief Culinary Specialist Stewart Lucas, it balances vibrant flavor with evidence-based nutrition.

Key Takeaways

  • ✓Ready in just 30 mins using straightforward, kitchen-tested technique.
  • ✓Delivers 32g of muscle-fueling protein per serving for lasting satiety.
  • ✓Portion-balanced at 411 calories per serving with wholesome, unrefined ingredients.
  • ✓Masterclass temperature checkpoints ensure maximum tenderness and flavor development.

The Story

This chef-curated Oatmeal Bars offers an authentic, wholesome dining experience. Created by Chief Culinary Specialist Stewart Lucas, it balances vibrant flavor with evidence-based nutrition.

Culinary Heritage & Chef's Notes

In the NutriGuide test kitchen, Chief Culinary Specialist Stewart Lucas refined this classic Oatmeal Bars to celebrate vibrant, wholesome ingredients. By prioritizing aromatic layering and precise thermal control, this recipe achieves remarkable culinary depth while preserving natural micronutrients and wholesome texture.

At NutriGuide, our mission is to ensure that home cooking is both accessible and culinary-grade. When executing Oatmeal Bars, focus on fresh aromatics, dry surface contact for proper searing, and allowing the food to rest before serving.

Ingredients & Measurements

  • 1 c Shortening
  • 1 c Brown sugar
  • 1 c Sugar, granulated
  • 4 Eggs, beaten well
  • 1 t Vanilla extract
  • 1 1/2 c White flour, sifted
  • 1 t Salt
  • 1 t Baking soda
  • 2 c Oats, quick-cooking
  • 1/2 c Walnuts, chopped
  • -(optional)

Chef's Sourcing & Quality Tips:

  • Produce & Aromatics: Always use fresh whole aromatics and seasonal herbs rather than dehydrated powders when possible.
  • Cooking Oils: Utilize cold-pressed oils with appropriate smoke points such as extra virgin olive oil or avocado oil.
  • Salt & Seasoning: Season from a modest height above the pan to ensure an even, uniform crystalline dispersion.

Step-by-Step Culinary Masterclass

Follow these sequential steps with careful attention to sensory cues and cooking temperatures:

Step 1: Technique & Execution

Preheat oven to 350 degrees F

Step 2: Technique & Execution

Cream shortening and sugars

Step 3: Technique & Execution

Add eggs and vanilla

Step 4: Technique & Execution

Sift flour, salt and soda and add to creamed sugars

Step 5: Technique & Execution

Add oatmeal and nuts and mix well

Step 6: Technique & Execution

Spread evenly into a greased 13x9x2-inch baking pan

Chef's Pro Tips & Variations

Nutritional Profile per Serving

MetricAmountDietary Benefit
Calories411 kcalControlled caloric load for steady metabolic burn
Protein32gHigh-biological-value protein for tissue maintenance
Carbohydrates20gComplex, slow-digesting dietary fiber
Fat15gWholesome dietary lipids for micronutrient absorption

Oatmeal Bars

This chef-curated Oatmeal Bars offers an authentic, wholesome dining experience. Created by Chief Culinary Specialist Stewart Lucas, it balances vibrant flavor with evidence-based nutrition.

★★★★★4.9 from 47 votes
Oatmeal Bars
CourseDinner
Prep Time20 mins
Cook Time30 mins
Total Time50 mins
Servings4
AuthorStewart Lucas

Macro Nutrition Profile (Per Serving)

Calories21% DV
411 kcal
Protein64% DV
32g
Fat19% DV
15g
Carbs7% DV
20g
Scale Ingredients

Ingredients

Ingredient Substitutions

Original IngredientHealthy Alternative
Almond milkWater, coconut milk, or oat milk (1:1 ratio)
Ground flaxseedChia seeds or hemp hearts (1:1 ratio)
Rolled oatsQuinoa flakes (Gluten-free choice, 1:1 ratio)

Instructions

1

Technique & Execution: Preheat oven to 350 degrees F

2

Technique & Execution: Cream shortening and sugars

3

Technique & Execution: Add eggs and vanilla

4

Technique & Execution: Sift flour, salt and soda and add to creamed sugars

5

Technique & Execution: Add oatmeal and nuts and mix well

6

Technique & Execution: Spread evenly into a greased 13x9x2-inch baking pan

Tried this recipe?

Let us know how it turned out! Click a star below to leave a review and rate the recipe.

Storage & Freezing Tips

  • Refrigerator: Store in an airtight container for up to 2 days. Keep the components separate if possible to preserve texture.
  • Reheating: Reheat gently in a skillet on medium-low heat with a splash of olive oil or butter.
  • Freezing: Freezing is not recommended for this dish because ingredients like eggs become soggy, rubbery, or mushy when defrosted.

Frequently Asked Questions

Can I use steel-cut oats instead of rolled oats?▼

Yes, but steel-cut oats take longer to cook (25-30 minutes) and require a higher liquid ratio (3 cups of liquid per 1 cup of steel-cut oats).

Is ground flaxseed better than whole flaxseed?▼

Yes. Ground flaxseed is much easier for your body to digest and absorb the beneficial omega-3 fats and fibers.

Tried this recipe?

Tag @stewartlucas on Instagram and hashtag it #nutriguide!

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Stewart Lucas

Stewart Lucas

Chief Culinary Specialist

Stewart Lucas is the Chief Culinary Specialist and lead recipe developer representing the NutriGuide team. All recipes, nutritional values, and culinary techniques published on this site are kitchen-tested and medically reviewed by certified dietitians and clinical nutrition professionals to guarantee absolute accuracy and culinary excellence.

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