Antioxidant capacity is the activity of a substance to inhibit oxidative degradation, in such a way that it acts, mainly, thanks to its action to react with free radicals since these are highly reactive molecules that can cause cellular damage and/or various diseases. Therefore, it is called antioxidant, which is commonly ingested through food. In that sense, there are three food sources that have phytochemicals with high antioxidant capacity, these are: beets for their presence of betalains and free phenolic groups; amaranth for its bioactive peptide content; and honey, since it has phenolic compounds and flavonoids. Therefore, the main objective was to evaluate the antioxidant capacity in the preparation of cookies enriched with antioxidants from amaranth, beet, peanut and cactus flour. An experimental/quantitative investigation was carried out, the samples were worked in triplicate and a blank control was also used; Amaranth, beet, peanut and cactus flours were made separately. Subsequently, two formulations of the cookies were made, using different percentages of the flours, and honey was used to sweeten them. The percentage of inhibition of the ABTS radial was determined, resulting in a % inhibition of 75.66% and 68.17% for G7075 and G9055, respectively. Concluding that cookies are a source of antioxidants with high capacity, which probably give them a functional property with benefit to the body.