diff --git a/MCTG/ConsoleApp/Menu/Menu.cs b/MCTG/ConsoleApp/Menu/Menu.cs
index fb6a09e..169a66b 100644
--- a/MCTG/ConsoleApp/Menu/Menu.cs
+++ b/MCTG/ConsoleApp/Menu/Menu.cs
@@ -38,23 +38,10 @@ namespace ConsoleApp.Menu
             CurrentSelected = _selectList[0].Item;
         }
 
-        public Menu(string title, Dictionary<T, string> lines) : this(title, CreateSelection(lines))
+        public Menu(string title, Dictionary<int, s> lines) : this(title, CreateSelection(lines))
         { }
 
-        public static Selector<T>[] CreateSelection(Dictionary<T, string> lines)
-        {
-            if (lines is null)
-            {
-                throw new ArgumentNullException(nameof(lines));
-            }
-
-            Selector<T>[] selections = new Selector<T>[lines.Count];
-            foreach (KeyValuePair<T, string> line in lines)
-            {
-                selections.Append(new Selector<T>(line.Key, line.Value));
-            }
-            return selections;
-        }
+        public static Selector<T>[] CreateSelection(List<T> lines);
 
         public virtual void Display()
         {
diff --git a/MCTG/ConsoleApp/Menu/SearcherRecipe.cs b/MCTG/ConsoleApp/Menu/SearcherRecipe.cs
index b437757..1bf77b5 100644
--- a/MCTG/ConsoleApp/Menu/SearcherRecipe.cs
+++ b/MCTG/ConsoleApp/Menu/SearcherRecipe.cs
@@ -18,12 +18,12 @@ namespace ConsoleApp.Menu
             : base(title, selections)
         { }
 
-        private SearcherRecipe(string title, Dictionary<Recipe, string> lines)
+        private SearcherRecipe(string title, Dictionary<int, Recipe> lines)
             : base(title, lines)
         { }
 
         public SearcherRecipe(RecipeCollection recipeCollection)
-            : this("Recipe search", recipeCollection.ToDictionary<int, Recipe>(recipe => recipe.GetHashCode()))
+            : this("Recipe search", recipeCollection.ToDictionary(r => r.GetHashCode()))
         {
 
         }
diff --git a/MCTG/Model/Recipes/RecipeCollection.cs b/MCTG/Model/Recipes/RecipeCollection.cs
index d439c76..42d4971 100644
--- a/MCTG/Model/Recipes/RecipeCollection.cs
+++ b/MCTG/Model/Recipes/RecipeCollection.cs
@@ -10,10 +10,9 @@ namespace Model
     /// Define a collection of <see cref="Recipe"/>.
     /// <br/>This class implement <see cref="IList"/> and <see cref="IEquatable{T}"/>.
     /// </summary>
-    public class RecipeCollection : IList<Recipe>, IEquatable<RecipeCollection>
+    public class RecipeCollection : List<Recipe>, IEquatable<RecipeCollection>
     {
         #region Attributes
-        private readonly List<Recipe> _recipes;
         private string _description = "";
         #endregion
 
@@ -33,12 +32,6 @@ namespace Model
                     _description = value;
             }
         }
-
-        #region IList Prperties
-        public int Count => _recipes.Count;
-        public bool IsReadOnly => false;
-        public Recipe this[int index] { get => _recipes[index]; set => _recipes[index] = value; }
-        #endregion
         #endregion
 
         #region Constructors
@@ -48,8 +41,8 @@ namespace Model
         /// <param name="description">A short description of what this list will contain</param>
         /// <param name="recipes">Recipes to add in this new collection</param>
         public RecipeCollection(string description, params Recipe[] recipes)
+            : base(recipes)
         {
-            _recipes = new List<Recipe>(recipes);
             Description = description;
         }
         #endregion
@@ -63,7 +56,7 @@ namespace Model
         /// <exception cref="ArgumentException"/>
         public Recipe? GetRecipeById(int id)
         {
-            Recipe? recipe = _recipes.Find(r => r.Id == id);
+            Recipe? recipe = this.Find(r => r.Id == id);
             if (recipe == null) throw new ArgumentException("No _recipes match the given id.");
             return recipe;
         }
@@ -77,66 +70,14 @@ namespace Model
         {
             return new RecipeCollection(
                 description: $"Results of the research: {str}",
-                recipes: _recipes.FindAll(x => x.Title.ToLower().Contains(str.ToLower())).ToArray());
-        }
-
-        #region IList Methods
-        public int IndexOf(Recipe item)
-        {
-            return _recipes.IndexOf(item);
-        }
-
-        public void Insert(int index, Recipe item)
-        {
-            _recipes.Insert(index, item);
-        }
-
-        public void RemoveAt(int index)
-        {
-            _recipes.RemoveAt(index);
-        }
-
-        public void Add(Recipe item)
-        {
-            _recipes.Add(item);
-        }
-
-        public void Clear()
-        {
-            _recipes.Clear();
+                recipes: this.FindAll(x => x.Title.ToLower().Contains(str.ToLower())).ToArray());
         }
 
-        public bool Contains(Recipe item)
-        {
-            return _recipes.Contains(item);
-        }
-
-        public void CopyTo(Recipe[] array, int arrayIndex)
-        {
-            _recipes.CopyTo(array, arrayIndex);
-        }
-
-        public bool Remove(Recipe item)
-        {
-            return _recipes.Remove(item);
-        }
-
-        public IEnumerator<Recipe> GetEnumerator()
-        {
-            return _recipes.GetEnumerator();
-        }
-
-        IEnumerator IEnumerable.GetEnumerator()
-        {
-            return _recipes.GetEnumerator();
-        }
-        #endregion
-
         public virtual bool Equals(RecipeCollection? other)
         {
             if (other == null) return false;
             if (other == this) return true;
-            return _description.Equals(other.Description) && _recipes.Equals(other._recipes);
+            return _description.Equals(other.Description) && this.Equals(other.this);
         }
 
         public override bool Equals(object? obj)
@@ -148,13 +89,13 @@ namespace Model
 
         public override int GetHashCode()
         {
-            return _recipes.GetHashCode();
+            return this.GetHashCode();
         }
 
         public override string ToString()
         {
             StringBuilder sb = new StringBuilder($"[RecipeCollection] - {Description}:\n");
-            foreach (Recipe r in _recipes)
+            foreach (Recipe r in this)
             {
                 sb.AppendFormat("\t - {0}\n", r.ToString());
             }