diff --git a/frontend/src/lib/planner/types.ts b/frontend/src/lib/planner/types.ts
index 7d80c2f..ff9ff96 100644
--- a/frontend/src/lib/planner/types.ts
+++ b/frontend/src/lib/planner/types.ts
@@ -13,6 +13,14 @@ export interface Recipe {
 	tags?: TagItem[];
 }
 
+export interface Slot {
+	id?: string | null;
+	slotDate?: string;
+	recipe?: Recipe | null;
+}
+
+export type SlotMap = Record<string, Slot>;
+
 export interface Suggestion {
 	recipe: Recipe;
 	scoreDelta: number;