diff --git a/src/routes/[recipeLang=recipeLang]/add/+page.svelte b/src/routes/[recipeLang=recipeLang]/add/+page.svelte
index 78df807..a45ae86 100644
--- a/src/routes/[recipeLang=recipeLang]/add/+page.svelte
+++ b/src/routes/[recipeLang=recipeLang]/add/+page.svelte
@@ -64,6 +64,7 @@
 
 	let short_name = $state("");
 	let isBaseRecipe = $state(false);
+	let defaultForm = $state(null);
 	let ingredients = $state<any[]>([]);
 	let instructions = $state<any[]>([]);
 
@@ -101,6 +102,7 @@
 		preamble,
 		addendum,
 		isBaseRecipe,
+		defaultForm,
 	});
 
 	// Show translation workflow before submission
@@ -263,6 +265,29 @@ button.action_button {
 		background-color: var(--nord6-dark);
 	}
 }
+.form-size-section {
+	max-width: 600px;
+	margin: 1rem auto;
+	text-align: center;
+}
+.form-size-controls {
+	display: flex;
+	gap: 1.5rem;
+	justify-content: center;
+	margin-bottom: 0.5rem;
+}
+.form-size-inputs {
+	display: flex;
+	gap: 1rem;
+	justify-content: center;
+	align-items: center;
+	flex-wrap: wrap;
+}
+.form-size-inputs input[type="number"] {
+	width: 4em;
+	display: inline;
+	margin: 0 0.3em;
+}
 .error-message {
 	background: var(--nord11);
 	color: var(--nord6);
@@ -336,6 +361,7 @@ button.action_button {
 	<input type="hidden" name="icon" value={card_data.icon} />
 	<input type="hidden" name="portions" value={portions_local} />
 	<input type="hidden" name="isBaseRecipe" value={isBaseRecipe ? "true" : "false"} />
+	<input type="hidden" name="defaultForm_json" value={defaultForm ? JSON.stringify(defaultForm) : ''} />
 
 	<div style="text-align: center; margin: 1rem;">
 		<Toggle
@@ -344,6 +370,44 @@ button.action_button {
 		/>
 	</div>
 
+	<!-- Default Form (Cake Pan) -->
+	<div class="form-size-section">
+		<h3>Backform (Standard):</h3>
+		<div class="form-size-controls">
+			<label>
+				<input type="radio" name="formShape" value="none" checked={!defaultForm} onchange={() => { defaultForm = null; }} />
+				Keine
+			</label>
+			<label>
+				<input type="radio" name="formShape" value="round" checked={defaultForm?.shape === 'round'} onchange={() => { defaultForm = { shape: 'round', diameter: defaultForm?.diameter || 26 }; }} />
+				Rund
+			</label>
+			<label>
+				<input type="radio" name="formShape" value="rectangular" checked={defaultForm?.shape === 'rectangular'} onchange={() => { defaultForm = { shape: 'rectangular', width: defaultForm?.width || 20, length: defaultForm?.length || 30 }; }} />
+				Rechteckig
+			</label>
+			<label>
+				<input type="radio" name="formShape" value="gugelhupf" checked={defaultForm?.shape === 'gugelhupf'} onchange={() => { defaultForm = { shape: 'gugelhupf', diameter: defaultForm?.diameter || 24, innerDiameter: defaultForm?.innerDiameter || 8 }; }} />
+				Gugelhupf
+			</label>
+		</div>
+		{#if defaultForm?.shape === 'round'}
+			<div class="form-size-inputs">
+				<label>Durchmesser: <input type="number" min="1" step="1" bind:value={defaultForm.diameter} /> cm</label>
+			</div>
+		{:else if defaultForm?.shape === 'rectangular'}
+			<div class="form-size-inputs">
+				<label>Breite: <input type="number" min="1" step="1" bind:value={defaultForm.width} /> cm</label>
+				<label>Länge: <input type="number" min="1" step="1" bind:value={defaultForm.length} /> cm</label>
+			</div>
+		{:else if defaultForm?.shape === 'gugelhupf'}
+			<div class="form-size-inputs">
+				<label>Außen-Ø: <input type="number" min="1" step="1" bind:value={defaultForm.diameter} /> cm</label>
+				<label>Innen-Ø: <input type="number" min="1" step="1" bind:value={defaultForm.innerDiameter} /> cm</label>
+			</div>
+		{/if}
+	</div>
+
 	<div class="title_container">
 		<div class="title">
 			<h4>Eine etwas längere Beschreibung:</h4>